Tucker attachment for sewing-machines.



T. W. RICHARDSON TUCKER ATTACHMENT FOR SEWING MACHINES,

APPLICATION FILED APR. 25, 1912.

1,082,360 Patented Dec. 23, 1913.

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THURSTON W. RICHARDSON, OF BEDFORD CITY, VIRGINIA.

Specification of Letters Patent.

TUCKER ATTACHMENT FOR SEWING-MACHINES.

Patented Dec. 23, 1913.

Application filed April 25,1912. Serial No. 693,055.

Be it. known that I, TIIURSTON W. Bion- ARDSOPQ-{L citizen of the United States, and

- a resident of Bedford City, in the county of Bedford and State of Virginia, have 1n= "vented certain new and useful Improvements -i-u Tucker Attachments for Sewing- Mach ies, of which the following 1s a s .)ecification, reference being had to the accompanying drawings.

This invention relates to improvements in tucker attachments for sewing machines.

One ob ectof the invention is to provide a t'uchenfor sewing machines by means of which cotton, linen, silk and woolengoods, leather or other materlal may be accurately.

tucked without creasing, marking or basting, and in which the tucks are turned above the material and are visible to the operator. 7

Another rohject is to provide an attach ment of this character which will be simple', strong, durable and inexpensive inconstruction, efficient and reliable in opera:

tion' and well adapted to. the purpose for which it is designed.

\Vith these and other objects in view, the present invention" consists in the combination and arrangement of parts as will be hereinafter more fully described and finally pointed out in the appended claim, itheingfurther' understood that changes in the specific structure shown and describedmay bemade within the scope of Lhe'claim' with out departing .from the spirit of the invention.

In the accompanying dra-wings'forming part of this specification and in which like numerals of reference indicate similar parts in the several v1ews: F igure 1, 1s a perspective View of a portion of a sewing mach1ne showlng the invention applied thereto. Fig.2, is a Vertical longitudinal section of the same, Fig. 3, is a cross sectional view of the same taken on a line with the clamping screw of the adjustable .spac'e gag-' ing bar of the tucker, and at right angles to the section shown in 'Fig. 2.

In the embodiment of the invention shown in the accompanying drawings, 1, denotes *a combined guide and gage plate, which may be of any suitable size and shape. In

the plate adjacent to and parallel with one edge thereof is a slot 2, with which is engaged a thumb screw 3, whereby the plate is adjustably secured to the top plate .of the machineas clearly shdwn in Fig.- 1, of the drawings.

On the end of the plate adjacent to the presser foot and needle of the machine is an upwardly projecting guide flange 4, which extends parallel with the tucks and lines of stitching formed in the goods and serves as a'guide for the goods while the tucks are being stitched and also as a gage for forming tucks of difierent vidths. In the flange 4, is a notch orrecess 5, in the center of which is an upwardly extending tooth:- or fixed pawl 6, the purpose of which will-be hereinafter desc'ribed. On the plate 1, a suitable distance from t-hefla'nge' l, and in line with the pawl 6, is a circular boss 7,-having therein a threaded socket 8, Slidably engaged-with the boss 7,-and with the notch -or.recess 5, in the flange 4, is a com-.

bined guide and space gage 9, comprising a fiat, bar or narrow plate which corresponds in" width to the width of the recess 5. On the end of the bar adjacent to the flange 4,

.is formed adownwardly and inwardly extending guide hook 10, which is adapted to be engaged with the folded edge of the last, tuekformed while'the-next tuck is being stitched .as clearly shown in Fig. 1, of the drawing.

' In the gage bar 9, is formed a central longitndinally. disposed slot 11, which extends substantially the entire len th of the bar and has on one edge a plura ity of teeth'12, which are adapted to be engaged with the tooth or pawl 6, said pawl thus firmly. ho'lding the bar in the position towhich it has been adjusted. In order to hold the bar.9, down into engagement with the recess 5,

. in the flange 4, and the teeth 12, in engagement with the W1 6, I provide a clamping screw 13, whic is inserted through the slot 41,01 the bar and is screwed into the threaded socket -8 of the boss 7. -The screw 13, is

provided with an enlarged head 14-, which engages the upper side of the bar and clamps the latter into tight engagement with the boss.- The screw 13, together with the is engaged firmly holds the latter against recess 5, inthe flange 4, with which the bar turning or lateral movement, while the engagement of the teeth 12, with the pawl 6, positively holds the bar against longitudinal movement and in the position to which it has been adjusted for spacing the tucks. In order to readily determine the distance to which the bar has been adjusted and the i l l r w consequent-spacing of tee tucks, I provide the bar with a scale. of measurement 15, which is preferably arranged on the upper side of the bar, as shown.

In applying-and operating the device the plate 1, is placed on the top plate of the machine and adjusted on the screw 3, to space the guide flange 4, from the needle to a distance equal to, the width of the tuck desired. The first tuck is then formed byfolding the material at the place desired and stitching the same in the manner indicated in the drawings. After tliefir'st tuck has thus been formed, the material is again folded back with the tuckalready formed, above or on the upper side ol? the goods. The guide hook 10, ot the gage bar 5), is then engaged with the folded edge of the finished tack and the clamping screw 1.3, ofthe bar istightened up and the bar thus held in the position to which. ,it has'jhc en adjusted. This adjustment of the bar 9, will gage'the distance between the rows of stitchingfard consequently the space between the tueksasl will be readily apparenthyreterence to" Fig.1, of the drawing. In forming thesuceessivfo tucks the guide hook 10,01 the gage bar is engaged with the preceding tuck as will be understood. It will thus be seen that no marking is required in 'm'al ing the tucks, theretore the tucks may be formed in silk or woolen go'ot s or other soft 'materialrthat will not'show a mark, without requiring the basting of the'tu: lit will be also noted that the tucks when formed are turned above and not below the goods as in the usual forms of tucks, and areth'us at all times in' plain view of the operalor. f g a;

"From the foregoingdescription taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes inthe form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as clamed.

Having thus describedmy invention, what- I claim as new and desire to secure by United States Letters Patent is :3

A tucker attachment for sewing machines, comprising a combined guide and gage plate, means to adjustably attach the same to suitable part of the machine whereby the material is guided and the width of the tucks regulated, a guide flange on said plate, said flange having therein a recess, a

Iixed pawl in said vrecess,atuekgniding and spacing bar slidahly engaged with said recess and having therein a longitwlinally disposed slot, a tuck engaging hook on one end of said bar, a series'of teeth in said slot adapted'to engage the fixed" pawl on said guide flange vherehy the bar is positively locked against longitudinal movement, a boss on said plate, having a threaded socket, and a clamping screw adapted to be inserted through the slot in said bar and screwed into the threaded socket of said boss whereby the bar is held down in opera-' tive engagement with the plate.

so i

in testimony whereof I allix my signa ture, in presence of two witness s.

'lllURSTON \V. RICHARDSON; -VVit'nessesz r Jon I). Moons,

J. L. DAVIDSON. 

